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EP1035192A1 - Additif pur un réfrigérant lubrifiant - Google Patents

Additif pur un réfrigérant lubrifiant Download PDF

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Publication number
EP1035192A1
EP1035192A1 EP99101374A EP99101374A EP1035192A1 EP 1035192 A1 EP1035192 A1 EP 1035192A1 EP 99101374 A EP99101374 A EP 99101374A EP 99101374 A EP99101374 A EP 99101374A EP 1035192 A1 EP1035192 A1 EP 1035192A1
Authority
EP
European Patent Office
Prior art keywords
additive
bismuth
acid
branched
linear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99101374A
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German (de)
English (en)
Inventor
Stefan Graichen
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP99101374A priority Critical patent/EP1035192A1/fr
Publication of EP1035192A1 publication Critical patent/EP1035192A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/30—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms
    • C10M129/34—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 7 or less carbon atoms polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
    • C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/26—Carboxylic acids; Salts thereof
    • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
    • C10M129/42—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/86—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of 30 or more atoms
    • C10M129/92—Carboxylic acids
    • C10M129/93—Carboxylic acids having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/127—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/22—Acids obtained from polymerised unsaturated acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/10—Groups 5 or 15
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2070/00—Specific manufacturing methods for lubricant compositions
    • C10N2070/02—Concentrating of additives

Definitions

  • the invention relates to an additive for a cooling lubricant, in water-mixed state both by excellent use in the cutting or non-cutting metalworking as well as by its anti-corrosive and bactericidal properties.
  • Cooling lubricants are used in metal cutting and in the Metal forming for cooling and lubricating workpieces used. They are used both in machining processes as in milling, turning, drilling and grinding as even with non-cutting deformations such as rolling, deep drawing or cold extrusion. According to DIN 51385 different one between water-miscible and water-mixed Coolants. Under the term “water-mixed” is the Final state of the finished medium, usually in the form of an oil-in-water emulsion, and under “water-miscible” the cooling lubricant concentrate to understand.
  • Water-mixed coolants pass through the user Mix the concentrate with water.
  • Cooling lubricant consisting of a bismuth salt of a linear, branched or alicyclic di-, tri- or polycarboxylic acid consisting of 2 to 60 carbon atoms and still free Carboxyl groups for the formation of alkali, ammonium or Has amine salts.
  • Bismuth salts are particularly preferred mentioned type having 15 to 40 carbon atoms.
  • bismuth salts are by dimerization of unsaturated fatty acids such as tall oil fatty acid obtained mixtures of acyclic and cyclic Dicarboxylic acids with an average of 36 carbon atoms as well the by-produced in the dimerization Trimer fatty acids particularly suitable.
  • unsaturated fatty acids such as tall oil fatty acid obtained mixtures of acyclic and cyclic Dicarboxylic acids with an average of 36 carbon atoms as well the by-produced in the dimerization Trimer fatty acids particularly suitable.
  • the lead Dodecylsuccinic acid and the 5- or 6-carboxy-4-hexyl-2-cyclohexene-1-octanoic acid to very good results.
  • Monocarboxylic acids are in particular the stearic acid or the Oleic acid into consideration.
  • the said bismuth salts are considered to be an anticorrosive and bactericidal additive to coolants excellent suitable. They are added to the coolant so that the bismuth content of the ready - to - use cooling lubricant in Range of 0.05 to 5 wt .-% is.
  • Cooling lubricants are often based on mineral oils built up.
  • the mineral oil qualities used are predominant Combinations of paraffinic, naphthenic and aromatic hydrocarbon compounds.
  • synthetic lubricants such as polyalphaolefins, polyalkylene glycol and polyalkylene glycol ethers, natural ester oils and synthetic esters and their derivatives meaning.
  • Emulsifiers e.g., surfactants, petroleum sulfonates, alkali soaps, Alkanolamine soaps
  • Emulsifiers stabilize the fine distribution of Oil droplets in the aqueous working fluid containing an oil-in-water emulsion represents.
  • Put the emulsifiers an important group of additives in the water-miscible cooling lubricants.
  • Conventional anti-corrosion additives are intended to rust Prevent metal surfaces. Some corrosion protection additives have simultaneously emulsifying properties and find Therefore, as emulsifiers their application. Biocides should prevent the growth of bacteria and fungi. EP additives should micro-welds between metal surfaces at prevent high pressures and temperatures. Polar accessories increase the lubrication properties. Anti-aging substances ensure a long service life of the cooling lubricants.
  • bismuth compounds have hitherto only played a subordinate role.
  • the bismuth compounds serve as EP additives. These are preferably selected from naphthenates and / or carboxylates of the general formula (R-COO) 3 Bi, in which R can denote a linear, branched or cyclic alkyl radical having 1 to 30 C atoms.
  • R can denote a linear, branched or cyclic alkyl radical having 1 to 30 C atoms.
  • bismuth alkylcarboxylates having 6 to 10 carbon atoms in the alkyl radical and in particular the bismuth octoate are particularly preferred.
  • the bismuth salts of the invention may be in the aqueous Systems as sole additive or in combination with others Additives are used.
  • Additives are used.
  • corrosion inhibitors such as Phosphonates, phosphonocarboxylic acids or phosphinocarboxylic acids, N-acylsarcosines, imidazolines, triethanolamine, fatty amines or Mono- or polycarboxylic acids. It has proven particularly useful the addition of monocarboxylic acids, especially isononanoic acid.
  • copper passivators such as water-soluble benzotriazoles, Methylene-bis-benzotriazoles or 2-mercaptobenzothiazoles can be added.
  • dispersants and Carriers such as poly (meth) acrylic acid and its salts, hydrolyzed polyacrylonitrile, polyacrylamide and its Copolymers, Ligninsulfonklare and their salts, starch and Starch derivatives, cellulose, alkylphosphonic acids, 1-aminoalkyl-1,1-diphosphonic acids and their salts, polymaleic acids and other polycarboxylic acids or alkali phosphates are added.
  • co-additives may be precipitants, such as alkali phosphates or alkali carbonates, oxygen scavengers such as Alkali sulfates or hydrazine, complexing agents such as Nitrilotriacetic acid or ethylenediamine tetraacetic acid and their salts, or antifoaming agents such as distearyl sebacic acid diamide, Distearyl adipamide or ethylene oxide or propylene oxide condensation products of such amides, as well as Fatty alcohols and their ethylene oxide condensation products.
  • precipitants such as alkali phosphates or alkali carbonates, oxygen scavengers such as Alkali sulfates or hydrazine
  • complexing agents such as Nitrilotriacetic acid or ethylenediamine tetraacetic acid and their salts
  • antifoaming agents such as distearyl sebacic acid diamide, Distearyl adipamide or ethylene oxide or propylene oxide
  • the bismuth salts according to the invention may be in an aqueous alkaline Solution with a pH above 8.0 or as well flowable aqueous dispersions are used.
  • Dispersants are all surface-active compounds, in particular anionic and nonionic surfactants.
  • Such dispersions may be thickened be stabilized, where as stabilizers especially modified polysaccharides of xanthan, alginate, guar or Cellulose type used. These include cellulose ethers, such as methylcellulose or carboxymethylcellulose and heteropolysaccharides.
  • dispersions of the invention can still contain additional aids, for example hydrotrope Agents such as urea or sodium xylenesulfonate; Antifreeze such as ethylene or propylene glycol, diethylene glycol, Glycerol or sorbitol; Biocides such as chloroacetamide, Formalin or 1,2-benzisothiazolin-3-one or complexing agent.
  • hydrotrope Agents such as urea or sodium xylenesulfonate
  • Antifreeze such as ethylene or propylene glycol, diethylene glycol, Glycerol or sorbitol
  • Biocides such as chloroacetamide, Formalin or 1,2-benzisothiazolin-3-one or complexing agent.
  • dispersions For the preparation of the dispersions it is advisable from solid bismuth salt, this sets the dispersant and the thickener and optionally the desired amount of water and other additives and stir the mixture until a flowable homogeneous dispersion is formed.
  • the way prepared dispersions are at room temperature and at Temperatures up to 40 ° C stable for several months. You keep their fluidity and do not separate. That's for the Storage and transport of the dispersions an important Property.
  • the dispersions it is from Advantage that they can be handled like liquids and dissolve very quickly in alkaline-aqueous systems.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
EP99101374A 1999-01-26 1999-01-26 Additif pur un réfrigérant lubrifiant Withdrawn EP1035192A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99101374A EP1035192A1 (fr) 1999-01-26 1999-01-26 Additif pur un réfrigérant lubrifiant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99101374A EP1035192A1 (fr) 1999-01-26 1999-01-26 Additif pur un réfrigérant lubrifiant

Publications (1)

Publication Number Publication Date
EP1035192A1 true EP1035192A1 (fr) 2000-09-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113403132A (zh) * 2021-07-12 2021-09-17 煤炭科学技术研究院有限公司 一种低温环境中快速还原型液压支架用浓缩液及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH184724A (de) * 1935-08-21 1936-06-15 Sint Fabbrica Prodotti Farmace Verfahren zur Herstellung von basischem Wismut-Adipinat.
CH184723A (de) * 1935-08-21 1936-06-15 Sint Fabbrica Prodotti Farmace Verfahren zur Herstellung von basischen Wismut-Sebacinat.
SU1384603A1 (ru) * 1986-05-26 1988-03-30 Гомельский Государственный Университет Присадка к смазочным маслам
GB2220937A (en) * 1988-07-18 1990-01-24 Glaxo Group Ltd Ranitidine derivatives
DE4229848A1 (de) * 1992-09-07 1994-03-10 Henkel Kgaa Aminfreie Kühlschmierstoffe
WO1997020461A1 (fr) * 1995-12-07 1997-06-12 Giltech Limited Lutte contre des micro-organismes dans un fluide
DE19634733A1 (de) * 1996-08-28 1998-03-05 Henkel Kgaa Verwendung von Wismutverbindungen in Kühlschmiermitteln

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH184724A (de) * 1935-08-21 1936-06-15 Sint Fabbrica Prodotti Farmace Verfahren zur Herstellung von basischem Wismut-Adipinat.
CH184723A (de) * 1935-08-21 1936-06-15 Sint Fabbrica Prodotti Farmace Verfahren zur Herstellung von basischen Wismut-Sebacinat.
SU1384603A1 (ru) * 1986-05-26 1988-03-30 Гомельский Государственный Университет Присадка к смазочным маслам
GB2220937A (en) * 1988-07-18 1990-01-24 Glaxo Group Ltd Ranitidine derivatives
DE4229848A1 (de) * 1992-09-07 1994-03-10 Henkel Kgaa Aminfreie Kühlschmierstoffe
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CN113403132B (zh) * 2021-07-12 2022-08-02 煤炭科学技术研究院有限公司 一种低温环境中快速还原型液压支架用浓缩液及其制备方法

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